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Interface ultrasonic reflectivity-pressure relation curve establishment method based on fillet plane contact theory and loading test stand

A technology of plane contact and relationship curve, applied in the field of ultrasonic detection, can solve the problems of large volume, waste of materials, high cost, and achieve the effect of high detection accuracy

Active Publication Date: 2017-07-07
DALIAN UNIV OF TECH
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Problems solved by technology

[0004] As for the loading test bench, most of the existing loading test pieces are monolithic, which has problems such as large volume and waste of materials, especially for test pieces such as titanium alloys, the cost is high; The eccentric load caused by the movement error has not been effectively dealt with, causing a certain amount of error to the detection results

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  • Interface ultrasonic reflectivity-pressure relation curve establishment method based on fillet plane contact theory and loading test stand
  • Interface ultrasonic reflectivity-pressure relation curve establishment method based on fillet plane contact theory and loading test stand
  • Interface ultrasonic reflectivity-pressure relation curve establishment method based on fillet plane contact theory and loading test stand

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[0061] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0062] Such as Figure 1-Figure 5 As shown, a method for establishing the interface ultrasonic reflectivity-pressure relationship curve based on the theory of rounded plane contact is a loading test bench based on a method for establishing the relationship curve of interface ultrasonic reflectivity-pressure based on the theory of rounded plan...

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Abstract

The invention discloses an interface ultrasonic reflectivity-pressure relation curve establishment method based on fillet plane contact theory and a loading test stand. The loading test stand includes a pressure display, a control terminal, an oscilloscope, a water logging ultrasonic transducer, a large cylinder, a small cylinder, an upper panel, a movable plate, a pressure sensor, a lower panel, an ultrasonic transceiver and a small cylinder connecting plate. Compared with the existing schemes, the interface ultrasonic reflectivity-pressure relation curve establishment method based on fillet plane contact theory and the loading test stand provided by the invention can construct a more accurate ultrasonic reflectivity-pressure relation curve, and the detection precision is high.

Description

technical field [0001] The invention relates to the technical field of ultrasonic detection, in particular to a method for establishing an interface ultrasonic reflectivity-pressure relationship curve and a loading test bench based on the theory of rounded plane contact. Background technique [0002] The performance of the interface has an important impact on the dynamic characteristics, vibration resistance, and motion response agility of mechanical equipment. With the implementation of the "Made in China 2025" policy, high-end assembly is increasingly dominated by quality. It becomes particularly important to realize the detection of the contact interface. Most of the methods for detecting the pressure distribution of joint surfaces disclosed in related patents use a pressure-sensitive film in the contact interface as a means of measuring the contact pressure distribution. However, the pressure-sensitive film itself has changed the interface conditions, which ultimately m...

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Application Information

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IPC IPC(8): G01N3/08G01L1/25
CPCG01L1/255G01N3/08G01N2203/0019G01N2203/0658
Inventor 孙伟袁博孙清超黄伟强马跃
Owner DALIAN UNIV OF TECH
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